One of Trump’s most ethically hazy deals, and one that may leave the Trump Organization open to federal prosecution: The Trump Organization’s work to build and manage a hotel in Azerbaijan in partnership with corrupt oligarchs, themselves apparently linked to individuals tight with the Iranian Revolutionary Guard Corps.

To build the Trump International Hotel & Tower Baku — a project conceived in 2008, and nearly finished, but never opened to the public — the Trump Organization worked with the family of Azerbaijan’s transportation minister and a powerful oligarch, Ziya Mammadov. The project has plenty of problems — it’s in the wrong part of town, and can’t compete with existing high-end hotels there — but seems likely to have fallen prey to the notoriously lax local ethics for business dealings.